Connect Premier Letters and your agent gets 13 tools, among them check_connection, connect_account, create_order. It answers at https://www.premierletters.com/api/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 4 of 4 times since 23 September 2026; the last check, on 6 November 2026, succeeded.
Send real pen-written letters, cards and postcards: quote, preview, order and track by mail.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
check_connection | Check whether the user approved a connect_account request. Returns status pending, denied, expired or claimed, or, exactly once, status approved with the api_key. Poll every 10-30 seconds. Inputs: request_id, poll_secret |
connect_account | Get a Premier Letters API key without the user copying one by hand. Pass the user's email and your name; we email them a link to approve (they can sign up from it if they have no account). Then call check_connection with the returned reques Inputs: email, agent_name, mode |
create_order | Create and pay for a Premier Letters order — a real, handwritten letter mailed via USPS. Requires a Premier Letters API key. Use get_pricing or preview_letter first to confirm the price. For payment, "card_on_file" charges the caller's save Inputs: message, recipients, options, payment, skip_invalid, return_address |
create_topup_link | Create a Stripe Checkout link that adds prepaid credit (plus any bonus tier) to the authenticated account. Give checkout_url to the human to pay in a browser; the balance updates once they pay (check with get_balance). amount_cents must be Inputs: amount_cents |
get_balance | Get the authenticated account's prepaid balance (balance_cents) and the top-up rules: minimum and maximum top-up, bonus tiers and suggested amounts. Orders paid with payment.method "balance" skip the small-order handling fee. Use create_top |
get_order_status | Get an order's status, delivery/tracking summary, and per-recipient mail status. Inputs: order_id |
get_pricing | Get a live price quote for a Premier Letters order. Pass char_count (or letter_count for a rough estimate) plus optional mailing_option and paper_type to get a per-piece and total price, in cents. No account needed. Orders under 5 pieces ca Inputs: char_count, letter_count, mailing_option, paper_type, sheet_count, envelope_stock |
list_extras | List the extra pieces that can go in each envelope with a Premier Letters order: printed inserts, printed letters, your own inserts, flyers, postcards, business cards. Each has options, a per-unit price in cents, a lead time and a purchase |
list_handwriting_styles | List available handwriting styles (fonts) for a letter order. Use the returned "id" as options.handwriting_style / handwriting_style when creating an order or previewing. |
list_orders | List the authenticated user's recent orders. Inputs: limit, status |
list_templates | List the authenticated user's saved letter templates. Inputs: search, favorites_only, sort |
preview_letter | Render a preview of a handwritten letter (as an SVG image) and get its price, before creating an order. Does not save anything. Inputs: message, handwriting_style, product_type, recipient |
verify_address | Verify and standardize a US mailing address via USPS. Use before create_order to catch typos and get the USPS-standardized form. Inputs: address_line1, address_line2, city, state, zip |
Every block below points at https://www.premierletters.com/api/mcp. Pick your client and copy.
claude mcp add --transport http premier-letters https://www.premierletters.com/api/mcp
{
"mcpServers": {
"premier-letters": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://www.premierletters.com/api/mcp"]
}
}
}{
"mcpServers": {
"premier-letters": {
"url": "https://www.premierletters.com/api/mcp"
}
}
}{
"servers": {
"premier-letters": {
"type": "http",
"url": "https://www.premierletters.com/api/mcp"
}
}
}{
"context_servers": {
"premier-letters": {
"url": "https://www.premierletters.com/api/mcp"
}
}
}{
"mcpServers": {
"premier-letters": {
"serverUrl": "https://www.premierletters.com/api/mcp"
}
}
}{
"mcpServers": {
"premier-letters": {
"url": "https://www.premierletters.com/api/mcp"
}
}
}name: Premier Letters
version: 0.0.1
schema: v1
mcpServers:
- name: Premier Letters
type: streamable-http
url: https://www.premierletters.com/api/mcp{
"mcpServers": {
"premier-letters": {
"httpUrl": "https://www.premierletters.com/api/mcp"
}
}
}{
"mcpServers": {
"premier-letters": {
"type": "http",
"url": "https://www.premierletters.com/api/mcp"
}
}
}{
"mcpServers": {
"premier-letters": {
"url": "https://www.premierletters.com/api/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fwww.premierletters.com%2Fapi%2Fmcp&type=streamable_http&id=premier-letters&name=Premier%20Letters
It answered our last check on 6 November 2026 in 252 ms. Over 4 checks since 23 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by premierletters.com and served from www.premierletters.com, the vendor's own domain: https://www.premierletters.com/api/mcp.
13, as returned by the server's own tools/list on 12 November 2026: check_connection, connect_account, create_order, create_topup_link, get_balance, get_order_status, get_pricing, list_extras, and 5 more.
It answered our last check on 6 November 2026 in 252 ms. Over 4 checks since 23 September 2026 it answered 4.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://www.premierletters.com/api/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: com.premierletters. Endpoint host: www.premierletters.com. ARD identifier: urn:air:com.premierletters:mcp:mcp.
First indexed 21 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.